If a player or pet gets killed by llama spit (by attacking the llama or by standing in line of fire) the death message is "<name> was slain by {llama|<llama name>}.
Possible fixes

• replace with "shot by", even though that's not completely true
• add new death message, some suggestions are in the comments of this video. Most popular suggestions (by upvotes):
  1. "drowned in saliva"(/spit)
  2. "has lleft the lland of the lliving"
  3. "got e-llama-nated"
  4. "was killed by Carl" (may be misleading)
  5. "got spat and went splat"
  6. "was clobbered by slobber"
  7. "was spitballed by {llama|<llama name>}"
  8. "was spat to death"
  9. "was killed by a projectile of bodily fluids"
  10. "irritated a llama"